•First convert to Christianity in Andhra Pradesh was Thumma Anumantha Reddy, also known as Manda Reddy.
•Manda Reddy, along with thirty Reddy families of Muddiguba and some other Reddy families in Alamuru, embraced Christianity in 1715.
• By 1750, Christianity further spread to the Circar Districts due to the migration of Christian Reddys into those areas.
•London missionary society: In 1805, the London Missionary Society was first Protestant mission in Andhra Pradesh which had its station at Visakhapatnam.
•George Crann and Augustus Des Granges arrived in Vishakapatam on 18 July 1805 and began learning the Telugu language. They mastered it in a short time and began translating parts of the New Testament.
•Baptist Missions: sutton preached in the northernmost parts of Andhra in 1805 but failed to achieve his objectives.
•Samuel s. day arrived Visakhapatnam in 1836 and searched for four years for a suitable place to start a mission station before finally finding one in Nellore. Canadian Baptist Missionaries quickly identified the possibility of holistic transformation of the Telugu society through education, and they found women to be potential agents of change
•Lutheran Missions: First Lutheran missionary in Andhra was John Christian Frederick Heyer who arrived in the year 1842 AD.
• He established a number of hospitals and a network of schools throughout the Guntur region.
•The two prominent Lutheran missions in Coastal Andhra were the Guntur Mission pioneered by John Christian Frederick Heyer of the Pennsylvania Synod Society and the Rajahmundry Mission established by Rev. Luis P. Manno Valett of North German Missionary Society in July 1845.
• In 1927 the Andhra Evangelical Lutheran Church was constituted with the merger of both these missions.
•Telangana Regions
•Wesleyan Methodist Missions : William Taylor, a missionary of the Methodist Episcopal Church triggered a great revival in Hyderabad during the years 1872–1874. The work began in Hyderabad as “Hindustani Mission“.
•He laid the foundations of missionary work by organising the migrant Telugu Christians as well as new converts in centres like Chilkalguda, Musheerabad, Market Street as part of the main church in Clock tower as Wesley Church pastorate,Secunderabad.
•Anglican Missions: In the year 1896, Rev. Charles Walker Posnett visited a village called Medak and built a bungalow there by staying in a dock bungalow.
•The Diocese of Dornakal was founded on 29 December 1912, when the Rev. Vedanaygam Samuel Azariah was consecrated its first Bishop in St. Paul’s Cathedral, Calcutta.
•Catholicism in Andhra Pradesh: The Franciscans of the Catholic Church brought Catholicism to the Deccan Area in 1535.
•The Christian contribution to culture and scientific studies was considerable. Apart from preaching the gospel, the French priests evinced keen interest in scientific study, especially in the field of mathematics and astronomy.